Building material.



U. S. BIRD.

BUILDING MATERIAL.

APPLIUA'I'ION FILED AUG. 9, 1911.

1,036,427. Patented Aug. 20, 1912.

urine snares arena curios.

CHARLES S.- BIRD, OF WALPOLE, MASSACHUSETTS.

BUILDING MATERIAL.

Application filed August 9, 1911.

' lValpole, in the county of Norfolk and State of Massachusetts, haveinvented certain new and useful Improvements in Building Material, ofwhich the following is a specification, reference being had to theaccompanying drawings, forming part thereof.

This invention has reference to improvements in building material andparticularly to improvements in building paper adapted for use as anexterior covering for roofs.

The object of the invention is to so construct building or roofingmaterial com rising a flexible base, preferably formed 0 paper, andhaving a layer of asphaltic material of substantial thickness andprovided with a surface coating of powdered soapstone, sand or othercomparatively small elements adapted to protect the asphaltic materialfrom the action of the weather that said surface coating shall bedivided, in appearance; into blocks of suitable size and shape withoutdestroying the protective qualities of said surface coating.

Other objects of the invention will appear from the followingdescription.

The invention consists 1n building material comprising a sheet or stripof paper furnished with a layer of asphaltic material having on itssurface areas of weather resisting mineral. elements divided by surfaceareasof the.asphaltic material, said areas of asphaltic material. beingpreferably arranged as stripes or lines. f

The invention also consists in such other novel features of constructionand the relation of parts as shall hereinafter be more fully describedand 'pointed out in the claim.

Figure 1, represents a plan View of a iece of building materialillustrati thls invention. Fig. 2, represents an en arged sectional viewtaken on line 22 Fig. 1.

Fig. 3, represents a sectional .view similar to.

Fig. 2 illustrating a modified form of the invention.

Similar numerals of reference designate corresponding parts throughout.

Building material of this general nature heretofore has beenconstructed-by taking a sheet or strip ,of paper, supplying sald paperwith a comparatively thick water reslstlng or water-proofing layercontaining a comparatively large proportion of asphaltic ma-Specification of Letters Patent.

Patented An". 20, 1912.

Serial No. 643,183.

terial and applying to the surface of said water resisting coatingacomparatively thin.

coating or layer of small particles of powdered soapstone, sand orsimilar, preferably mineral, elements which adhere to the surface of thewater resisting coating andtend to a considerable degree to protect thewater resisting layer from the action of the weather. This protectivecoating extends in an unbroken area over the surface of the material andpresents a monotonous appearance which militates against the extendeduse of the material in conspicuous locations where the use of suchmaterial is otherwise desirable.

In carrying this invention into practice it has been my desire to soconstruct building material and particularly roofing paper I of the samegeneral nature as that'heretofore used but having its. constituentmechanical elements so combined and related that the protective surfacecoating of powdered soapstone or. other small particles is divided intoornamental area-s by other areas, lines or stripes in such manner thatthe same constituent elements are preferably present in all of saidareas, lines or stripes and, in its preferred form, that the saidprotective coating shall be continuous as regards its protectivequalities.

In construct-ing this material I preferably take a sheet or strip 5 ofpaper or other suitable material adapted to be used as abase or backingand to such base 5 I supply the water resisting layer 6 preferablycontaining tar of some kind or asphaltic material, and to the surface ofthe layer 6 I supply powdered soapstone, sand or other mineral particleswhich adhere to the surface of the layer 6 and form the protectivecoating? of a color preferably in contact to that of the layer 6. I nowtake this ma-' terial and by heat orpressure or by combined heat andpressure applied to the surface of the coating 7 in a predetermineddesign I cause the soapstone or similar particles in the lines or areas8, 8 of such design to become so embedded in the material of the layer 6that the greater portions of tional view of a piece of building paper 5having the layer 6 of asphaltic water resisting material to the surfaceof which powdered soapstone or sand is applied as at 9, 9 leaving thesurface of the material 6 exposed at other points to form a design butthis modified construction is not as desirable as that shown in Fig. 2for the reason that the protective coating of mineral particles is notcontinuous.

WVhile Ihave attempted to show in the drawings the approximate relationsof the different elements of the invention, I do not intend the'reby'tolimit myself to the use of particles of, mineral or other material ofany particular size for the coating 7. It is also evident that the shapeof said particles may be different from that shown and that such shapesand sizes cannot be readily shown in a drawing.

In my preferred form I do not Wish to limit myself to any particularmethod of production as, for instance, the embedment of those portionsof the particles of the coating 7, forming the design 8, into the layer6 may result from the application thereto of a solvent for the materialof sald layer 6 whereby said layer is, at points, so softened that saidparticles of the protective coating will sink into the surface of layer6. Having thus described my inventlon, I claim as new and desire tosecure by Letters Patent I I Building and roofing material comprising asheet 'of paper furnished with 'an asphaltic coating having a continuouslayer of soapstone particles, certain areas or lines of said particlesbeing embedded in said asphaltic material thereby exposing the asphaltlcmaterial and producing areas or lines of contrastlng color.

oHAR'LEs s. BIRD.

Witnesses H. H? MILLER,

HENRY J. MILLER.

